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https://github.com/tiagovignatti/intel-gpu-tools.git
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e1ed5606c6
Condense the information and begin graphing it. Remaining todo for memory is to measure bind/evict flux, and perhaps clflush. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
135 lines
2.6 KiB
C
135 lines
2.6 KiB
C
#include <unistd.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "gem-objects.h"
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/* /sys/kernel/debug/dri/0/i915_gem_objects:
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* 46 objects, 20107264 bytes
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* 42 [42] objects, 15863808 [15863808] bytes in gtt
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* 0 [0] active objects, 0 [0] bytes
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* 42 [42] inactive objects, 15863808 [15863808] bytes
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* 0 unbound objects, 0 bytes
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* 3 purgeable objects, 4456448 bytes
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* 30 pinned mappable objects, 3821568 bytes
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* 1 fault mappable objects, 3145728 bytes
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* 2145386496 [536870912] gtt total
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*
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* Xorg: 35 objects, 16347136 bytes (0 active, 12103680 inactive, 0 unbound)
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*/
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int gem_objects_init(struct gem_objects *obj)
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{
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char buf[8192], *b;
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int fd, len;
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memset(obj, 0, sizeof(*obj));
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fd = open("/sys/kernel/debug/dri/0/i915_gem_objects", 0);
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if (fd < 0)
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return errno;
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len = read(fd, buf, sizeof(buf)-1);
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close(fd);
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if (len < 0)
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return EIO;
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b = strstr(buf, "gtt total");
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if (b == NULL)
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return EIO;
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while (*b != '\n')
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b--;
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sscanf(b, "%ld [%ld]",
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&obj->max_gtt, &obj->max_aperture);
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return 0;
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}
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static void insert_sorted(struct gem_objects *obj,
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struct gem_objects_comm *comm)
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{
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struct gem_objects_comm *next, **prev;
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for (prev = &obj->comm; (next = *prev) != NULL; prev = &next->next)
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if (comm->bytes > next->bytes)
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break;
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comm->next = *prev;
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*prev = comm;
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}
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int gem_objects_update(struct gem_objects *obj)
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{
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char buf[8192], *b;
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struct gem_objects_comm *comm;
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struct gem_objects_comm *freed;
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int fd, len, ret;
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freed = obj->comm;
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obj->comm = NULL;
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fd = open("/sys/kernel/debug/dri/0/i915_gem_objects", 0);
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if (fd < 0) {
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ret = errno;
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goto done;
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}
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len = read(fd, buf, sizeof(buf)-1);
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close(fd);
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if (len < 0) {
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ret = EIO;
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goto done;
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}
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buf[len] = '\0';
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while (buf[--len] == '\n')
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buf[len] = '\0';
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b = buf;
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sscanf(b, "%d objects, %ld bytes",
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&obj->total_count, &obj->total_bytes);
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b = strchr(b, '\n');
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sscanf(b, "%*d [%*d] objects, %ld [%ld] bytes in gtt",
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&obj->total_gtt, &obj->total_aperture);
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ret = 0;
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b = strchr(b, ':');
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if (b == NULL)
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goto done;
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while (*b != '\n')
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b--;
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do {
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comm = freed;
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if (comm)
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freed = comm->next;
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else
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comm = malloc(sizeof(*comm));
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if (comm == NULL)
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break;
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/* Xorg: 35 objects, 16347136 bytes (0 active, 12103680 inactive, 0 unbound) */
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sscanf(++b, "%256s %u objects, %lu bytes",
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comm->name, &comm->count, &comm->bytes);
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insert_sorted(obj, comm);
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} while ((b = strchr(b, '\n')) != NULL);
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done:
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while (freed) {
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comm = freed;
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freed = comm->next;
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free(comm);
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}
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return ret;
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}
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